Abstract: The invention comprises a communications device having an improved spring mechanism for forcing open a sliding keypad cover. The spring mechanism comprises at least one guide rod, an end of each guide rod attached to the backside mechanics of the sliding keypad cover, each guide rod having a travel limit. The improved spring mechanism further comprising a guide frame having at least one guide hole, the at least one guide hole for receiving the at least one guide rod. The improved spring mechanism further comprises a spring positioned around the guide rod and between the at least one guide hole and the travel limit. The spring having a compressed state when the sliding keypad cover is closed. The spring mechanism further comprising a release mechanism coupled with the at least one guide rod when the sliding keypad cover is in the closed position.

Abstract: A system and method for canceling interference present in a code-division multiple access (CDMA) channel signal received at a CDMA receiver that is caused by multipath components of a transmitted pilot channel signal or by soft handoff conditions is computationally efficient because it operates at symbol rates. The channel signal from which such multipath interference is canceled can be either a traffic (data) channel or the pilot channel itself. Interference signals are produced in groups corresponding to the fingers of the CDMA rake receiver. The interference signals corresponding to each finger are used to cancel interference in the other fingers.

Abstract: Methods for designing golf club heads and inertially tailored golf club heads designed in accordance with such methods. A location for a center of gravity (CG) of a golf club head and magnitudes and directions of the principal moments of inertia of the golf club head are selected, and mass is distributed within the golf club head such that the center of gravity of the golf club head is located at the selected center of gravity location, and such that the principal moments of inertia of the golf club head have the selected magnitudes and directions.

Abstract: A sole configuration for a golf club head that provides the benefits of a sole configuration incorporating a medial ridge design. The medial ridge divides the sole into a toe and heel section. The sole further comprises a first and a second recess in the toe and heel sections respectively, wherein the first and second recesses are downwardly convex thereby allowing for the center of gravity of the golf club head to be positioned lower than in a golf club head having recesses that are downwardly concave. The first recess has a horizontal concavity that is in an opposite direction from the concavity of the second recess.